Trivia

Unlike Mana Steal that only drains mana from living things, Mana Drain can drain mana from everything that can be damaged like doors to forward map and boxes.

Additionally, it is possible to gain more mana with Mana Drain than with Mana Steal, because it does not require MP to use, and in awakening, with Specter Power Release unlocked, additional mana can be gained as a result of the spirit energy usage.